[linux-block.git] / drivers / power / pda_power.c

/*
 * Common power driver for PDAs and phones with one or two external
 * power supplies (AC/USB) connected to main and backup batteries,
 * and optional builtin charger.
 *
 * Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/power_supply.h>
#include <linux/pda_power.h>
#include <linux/timer.h>
#include <linux/jiffies.h>

static inline unsigned int get_irq_flags(struct resource *res)
{
	unsigned int flags = IRQF_DISABLED | IRQF_SHARED;

	flags |= res->flags & IRQF_TRIGGER_MASK;

	return flags;
}

static struct device *dev;
static struct pda_power_pdata *pdata;
static struct resource *ac_irq, *usb_irq;
static struct timer_list charger_timer;
static struct timer_list supply_timer;
static struct timer_list polling_timer;
static int polling;

enum {
	PDA_PSY_OFFLINE = 0,
	PDA_PSY_ONLINE = 1,
	PDA_PSY_TO_CHANGE,
};
static int new_ac_status = -1;
static int new_usb_status = -1;
static int ac_status = -1;
static int usb_status = -1;

static int pda_power_get_property(struct power_supply *psy,
				  enum power_supply_property psp,
				  union power_supply_propval *val)
{
	switch (psp) {
	case POWER_SUPPLY_PROP_ONLINE:
		if (psy->type == POWER_SUPPLY_TYPE_MAINS)
			val->intval = pdata->is_ac_online ?
				      pdata->is_ac_online() : 0;
		else
			val->intval = pdata->is_usb_online ?
				      pdata->is_usb_online() : 0;
		break;
	default:
		return -EINVAL;
	}
	return 0;
}

static enum power_supply_property pda_power_props[] = {
	POWER_SUPPLY_PROP_ONLINE,
};

static char *pda_power_supplied_to[] = {
	"main-battery",
	"backup-battery",
};

static struct power_supply pda_psy_ac = {
	.name = "ac",
	.type = POWER_SUPPLY_TYPE_MAINS,
	.supplied_to = pda_power_supplied_to,
	.num_supplicants = ARRAY_SIZE(pda_power_supplied_to),
	.properties = pda_power_props,
	.num_properties = ARRAY_SIZE(pda_power_props),
	.get_property = pda_power_get_property,
};

static struct power_supply pda_psy_usb = {
	.name = "usb",
	.type = POWER_SUPPLY_TYPE_USB,
	.supplied_to = pda_power_supplied_to,
	.num_supplicants = ARRAY_SIZE(pda_power_supplied_to),
	.properties = pda_power_props,
	.num_properties = ARRAY_SIZE(pda_power_props),
	.get_property = pda_power_get_property,
};

static void update_status(void)
{
	if (pdata->is_ac_online)
		new_ac_status = !!pdata->is_ac_online();

	if (pdata->is_usb_online)
		new_usb_status = !!pdata->is_usb_online();
}

static void update_charger(void)
{
	if (!pdata->set_charge)
		return;

	if (new_ac_status > 0) {
		dev_dbg(dev, "charger on (AC)\n");
		pdata->set_charge(PDA_POWER_CHARGE_AC);
	} else if (new_usb_status > 0) {
		dev_dbg(dev, "charger on (USB)\n");
		pdata->set_charge(PDA_POWER_CHARGE_USB);
	} else {
		dev_dbg(dev, "charger off\n");
		pdata->set_charge(0);
	}
}

static void supply_timer_func(unsigned long unused)
{
	if (ac_status == PDA_PSY_TO_CHANGE) {
		ac_status = new_ac_status;
		power_supply_changed(&pda_psy_ac);
	}

	if (usb_status == PDA_PSY_TO_CHANGE) {
		usb_status = new_usb_status;
		power_supply_changed(&pda_psy_usb);
	}
}

static void psy_changed(void)
{
	update_charger();

	/*
	 * Okay, charger set. Now wait a bit before notifying supplicants,
	 * charge power should stabilize.
	 */
	mod_timer(&supply_timer,
		  jiffies + msecs_to_jiffies(pdata->wait_for_charger));
}

static void charger_timer_func(unsigned long unused)
{
	update_status();
	psy_changed();
}

static irqreturn_t power_changed_isr(int irq, void *power_supply)
{
	if (power_supply == &pda_psy_ac)
		ac_status = PDA_PSY_TO_CHANGE;
	else if (power_supply == &pda_psy_usb)
		usb_status = PDA_PSY_TO_CHANGE;
	else
		return IRQ_NONE;

	/*
	 * Wait a bit before reading ac/usb line status and setting charger,
	 * because ac/usb status readings may lag from irq.
	 */
	mod_timer(&charger_timer,
		  jiffies + msecs_to_jiffies(pdata->wait_for_status));

	return IRQ_HANDLED;
}

static void polling_timer_func(unsigned long unused)
{
	int changed = 0;

	dev_dbg(dev, "polling...\n");

	update_status();

	if (!ac_irq && new_ac_status != ac_status) {
		ac_status = PDA_PSY_TO_CHANGE;
		changed = 1;
	}

	if (!usb_irq && new_usb_status != usb_status) {
		usb_status = PDA_PSY_TO_CHANGE;
		changed = 1;
	}

	if (changed)
		psy_changed();

	mod_timer(&polling_timer,
		  jiffies + msecs_to_jiffies(pdata->polling_interval));
}

static int pda_power_probe(struct platform_device *pdev)
{
	int ret = 0;

	dev = &pdev->dev;

	if (pdev->id != -1) {
		dev_err(dev, "it's meaningless to register several "
			"pda_powers; use id = -1\n");
		ret = -EINVAL;
		goto wrongid;
	}

	pdata = pdev->dev.platform_data;

	if (pdata->init) {
		ret = pdata->init(dev);
		if (ret < 0)
			goto init_failed;
	}

	update_status();
	update_charger();

	if (!pdata->wait_for_status)
		pdata->wait_for_status = 500;

	if (!pdata->wait_for_charger)
		pdata->wait_for_charger = 500;

	if (!pdata->polling_interval)
		pdata->polling_interval = 2000;

	setup_timer(&charger_timer, charger_timer_func, 0);
	setup_timer(&supply_timer, supply_timer_func, 0);

	ac_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "ac");
	usb_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "usb");

	if (pdata->supplied_to) {
		pda_psy_ac.supplied_to = pdata->supplied_to;
		pda_psy_ac.num_supplicants = pdata->num_supplicants;
		pda_psy_usb.supplied_to = pdata->supplied_to;
		pda_psy_usb.num_supplicants = pdata->num_supplicants;
	}

	if (pdata->is_ac_online) {
		ret = power_supply_register(&pdev->dev, &pda_psy_ac);
		if (ret) {
			dev_err(dev, "failed to register %s power supply\n",
				pda_psy_ac.name);
			goto ac_supply_failed;
		}

		if (ac_irq) {
			ret = request_irq(ac_irq->start, power_changed_isr,
					  get_irq_flags(ac_irq), ac_irq->name,
					  &pda_psy_ac);
			if (ret) {
				dev_err(dev, "request ac irq failed\n");
				goto ac_irq_failed;
			}
		} else {
			polling = 1;
		}
	}

	if (pdata->is_usb_online) {
		ret = power_supply_register(&pdev->dev, &pda_psy_usb);
		if (ret) {
			dev_err(dev, "failed to register %s power supply\n",
				pda_psy_usb.name);
			goto usb_supply_failed;
		}

		if (usb_irq) {
			ret = request_irq(usb_irq->start, power_changed_isr,
					  get_irq_flags(usb_irq),
					  usb_irq->name, &pda_psy_usb);
			if (ret) {
				dev_err(dev, "request usb irq failed\n");
				goto usb_irq_failed;
			}
		} else {
			polling = 1;
		}
	}

	if (polling) {
		dev_dbg(dev, "will poll for status\n");
		setup_timer(&polling_timer, polling_timer_func, 0);
		mod_timer(&polling_timer,
			  jiffies + msecs_to_jiffies(pdata->polling_interval));
	}

	if (ac_irq || usb_irq)
		device_init_wakeup(&pdev->dev, 1);

	return 0;

usb_irq_failed:
	if (pdata->is_usb_online)
		power_supply_unregister(&pda_psy_usb);
usb_supply_failed:
	if (pdata->is_ac_online && ac_irq)
		free_irq(ac_irq->start, &pda_psy_ac);
ac_irq_failed:
	if (pdata->is_ac_online)
		power_supply_unregister(&pda_psy_ac);
ac_supply_failed:
	if (pdata->exit)
		pdata->exit(dev);
init_failed:
wrongid:
	return ret;
}

static int pda_power_remove(struct platform_device *pdev)
{
	if (pdata->is_usb_online && usb_irq)
		free_irq(usb_irq->start, &pda_psy_usb);
	if (pdata->is_ac_online && ac_irq)
		free_irq(ac_irq->start, &pda_psy_ac);

	if (polling)
		del_timer_sync(&polling_timer);
	del_timer_sync(&charger_timer);
	del_timer_sync(&supply_timer);

	if (pdata->is_usb_online)
		power_supply_unregister(&pda_psy_usb);
	if (pdata->is_ac_online)
		power_supply_unregister(&pda_psy_ac);
	if (pdata->exit)
		pdata->exit(dev);

	return 0;
}

#ifdef CONFIG_PM
static int pda_power_suspend(struct platform_device *pdev, pm_message_t state)
{
	if (device_may_wakeup(&pdev->dev)) {
		if (ac_irq)
			enable_irq_wake(ac_irq->start);
		if (usb_irq)
			enable_irq_wake(usb_irq->start);
	}

	return 0;
}

static int pda_power_resume(struct platform_device *pdev)
{
	if (device_may_wakeup(&pdev->dev)) {
		if (usb_irq)
			disable_irq_wake(usb_irq->start);
		if (ac_irq)
			disable_irq_wake(ac_irq->start);
	}

	return 0;
}
#else
#define pda_power_suspend NULL
#define pda_power_resume NULL
#endif /* CONFIG_PM */

MODULE_ALIAS("platform:pda-power");

static struct platform_driver pda_power_pdrv = {
	.driver = {
		.name = "pda-power",
	},
	.probe = pda_power_probe,
	.remove = pda_power_remove,
	.suspend = pda_power_suspend,
	.resume = pda_power_resume,
};

static int __init pda_power_init(void)
{
	return platform_driver_register(&pda_power_pdrv);
}

static void __exit pda_power_exit(void)
{
	platform_driver_unregister(&pda_power_pdrv);
}

module_init(pda_power_init);
module_exit(pda_power_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Anton Vorontsov <cbou@mail.ru>");
Commit	Line	Data
b2998049 AV	1	/*
	2	* Common power driver for PDAs and phones with one or two external
	3	* power supplies (AC/USB) connected to main and backup batteries,
	4	* and optional builtin charger.
	5	*
	6	* Copyright © 2007 Anton Vorontsov <cbou@mail.ru>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
	13	#include <linux/module.h>
	14	#include <linux/platform_device.h>
	15	#include <linux/interrupt.h>
	16	#include <linux/power_supply.h>
	17	#include <linux/pda_power.h>
	18	#include <linux/timer.h>
	19	#include <linux/jiffies.h>
	20
	21	static inline unsigned int get_irq_flags(struct resource *res)
	22	{
	23	unsigned int flags = IRQF_DISABLED \| IRQF_SHARED;
	24
	25	flags \|= res->flags & IRQF_TRIGGER_MASK;
	26
	27	return flags;
	28	}
	29
	30	static struct device *dev;
	31	static struct pda_power_pdata *pdata;
	32	static struct resource ac_irq, usb_irq;
	33	static struct timer_list charger_timer;
	34	static struct timer_list supply_timer;
c3caebad AV	35	static struct timer_list polling_timer;
c3caebad AV	36	static int polling;
b2998049	37
bfde2662 AV	38	enum {
	39	PDA_PSY_OFFLINE = 0,
	40	PDA_PSY_ONLINE = 1,
	41	PDA_PSY_TO_CHANGE,
	42	};
	43	static int new_ac_status = -1;
	44	static int new_usb_status = -1;
	45	static int ac_status = -1;
	46	static int usb_status = -1;
	47
b2998049 AV	48	static int pda_power_get_property(struct power_supply *psy,
	49	enum power_supply_property psp,
	50	union power_supply_propval *val)
	51	{
	52	switch (psp) {
	53	case POWER_SUPPLY_PROP_ONLINE:
	54	if (psy->type == POWER_SUPPLY_TYPE_MAINS)
	55	val->intval = pdata->is_ac_online ?
	56	pdata->is_ac_online() : 0;
	57	else
	58	val->intval = pdata->is_usb_online ?
	59	pdata->is_usb_online() : 0;
	60	break;
	61	default:
	62	return -EINVAL;
	63	}
	64	return 0;
	65	}
	66
	67	static enum power_supply_property pda_power_props[] = {
	68	POWER_SUPPLY_PROP_ONLINE,
	69	};
	70
	71	static char *pda_power_supplied_to[] = {
	72	"main-battery",
	73	"backup-battery",
	74	};
	75
bfde2662 AV	76	static struct power_supply pda_psy_ac = {
	77	.name = "ac",
	78	.type = POWER_SUPPLY_TYPE_MAINS,
	79	.supplied_to = pda_power_supplied_to,
	80	.num_supplicants = ARRAY_SIZE(pda_power_supplied_to),
	81	.properties = pda_power_props,
	82	.num_properties = ARRAY_SIZE(pda_power_props),
	83	.get_property = pda_power_get_property,
b2998049 AV	84	};
b2998049 AV	85
bfde2662 AV	86	static struct power_supply pda_psy_usb = {
	87	.name = "usb",
	88	.type = POWER_SUPPLY_TYPE_USB,
	89	.supplied_to = pda_power_supplied_to,
	90	.num_supplicants = ARRAY_SIZE(pda_power_supplied_to),
	91	.properties = pda_power_props,
	92	.num_properties = ARRAY_SIZE(pda_power_props),
	93	.get_property = pda_power_get_property,
	94	};
	95
	96	static void update_status(void)
	97	{
	98	if (pdata->is_ac_online)
	99	new_ac_status = !!pdata->is_ac_online();
	100
	101	if (pdata->is_usb_online)
	102	new_usb_status = !!pdata->is_usb_online();
	103	}
	104
b2998049 AV	105	static void update_charger(void)
	106	{
	107	if (!pdata->set_charge)
	108	return;
	109
bfde2662	110	if (new_ac_status > 0) {
b2998049 AV	111	dev_dbg(dev, "charger on (AC)\n");
b2998049 AV	112	pdata->set_charge(PDA_POWER_CHARGE_AC);
bfde2662	113	} else if (new_usb_status > 0) {
b2998049 AV	114	dev_dbg(dev, "charger on (USB)\n");
	115	pdata->set_charge(PDA_POWER_CHARGE_USB);
	116	} else {
	117	dev_dbg(dev, "charger off\n");
	118	pdata->set_charge(0);
	119	}
b2998049 AV	120	}
b2998049 AV	121
bfde2662	122	static void supply_timer_func(unsigned long unused)
b2998049	123	{
bfde2662 AV	124	if (ac_status == PDA_PSY_TO_CHANGE) {
	125	ac_status = new_ac_status;
	126	power_supply_changed(&pda_psy_ac);
	127	}
5ebf6e6a	128
bfde2662 AV	129	if (usb_status == PDA_PSY_TO_CHANGE) {
	130	usb_status = new_usb_status;
	131	power_supply_changed(&pda_psy_usb);
	132	}
b2998049 AV	133	}
b2998049 AV	134
bfde2662	135	static void psy_changed(void)
b2998049 AV	136	{
	137	update_charger();
	138
bfde2662 AV	139	/*
	140	* Okay, charger set. Now wait a bit before notifying supplicants,
	141	* charge power should stabilize.
	142	*/
b2998049 AV	143	mod_timer(&supply_timer,
b2998049 AV	144	jiffies + msecs_to_jiffies(pdata->wait_for_charger));
b2998049 AV	145	}
b2998049 AV	146
bfde2662 AV	147	static void charger_timer_func(unsigned long unused)
	148	{
	149	update_status();
	150	psy_changed();
	151	}
	152
5ebf6e6a	153	static irqreturn_t power_changed_isr(int irq, void *power_supply)
b2998049	154	{
bfde2662 AV	155	if (power_supply == &pda_psy_ac)
	156	ac_status = PDA_PSY_TO_CHANGE;
	157	else if (power_supply == &pda_psy_usb)
	158	usb_status = PDA_PSY_TO_CHANGE;
	159	else
	160	return IRQ_NONE;
	161
	162	/*
	163	* Wait a bit before reading ac/usb line status and setting charger,
	164	* because ac/usb status readings may lag from irq.
	165	*/
b2998049 AV	166	mod_timer(&charger_timer,
b2998049 AV	167	jiffies + msecs_to_jiffies(pdata->wait_for_status));
bfde2662	168
b2998049 AV	169	return IRQ_HANDLED;
	170	}
	171
c3caebad AV	172	static void polling_timer_func(unsigned long unused)
	173	{
	174	int changed = 0;
	175
	176	dev_dbg(dev, "polling...\n");
	177
	178	update_status();
	179
	180	if (!ac_irq && new_ac_status != ac_status) {
	181	ac_status = PDA_PSY_TO_CHANGE;
	182	changed = 1;
	183	}
	184
	185	if (!usb_irq && new_usb_status != usb_status) {
	186	usb_status = PDA_PSY_TO_CHANGE;
	187	changed = 1;
	188	}
	189
	190	if (changed)
	191	psy_changed();
	192
	193	mod_timer(&polling_timer,
	194	jiffies + msecs_to_jiffies(pdata->polling_interval));
	195	}
	196
b2998049 AV	197	static int pda_power_probe(struct platform_device *pdev)
	198	{
	199	int ret = 0;
	200
	201	dev = &pdev->dev;
	202
	203	if (pdev->id != -1) {
	204	dev_err(dev, "it's meaningless to register several "
	205	"pda_powers; use id = -1\n");
	206	ret = -EINVAL;
	207	goto wrongid;
	208	}
	209
	210	pdata = pdev->dev.platform_data;
	211
f6b6b180 PZ	212	if (pdata->init) {
	213	ret = pdata->init(dev);
	214	if (ret < 0)
	215	goto init_failed;
	216	}
	217
bfde2662	218	update_status();
b2998049 AV	219	update_charger();
	220
	221	if (!pdata->wait_for_status)
	222	pdata->wait_for_status = 500;
	223
	224	if (!pdata->wait_for_charger)
	225	pdata->wait_for_charger = 500;
	226
c3caebad AV	227	if (!pdata->polling_interval)
	228	pdata->polling_interval = 2000;
	229
b2998049 AV	230	setup_timer(&charger_timer, charger_timer_func, 0);
	231	setup_timer(&supply_timer, supply_timer_func, 0);
	232
	233	ac_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "ac");
	234	usb_irq = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "usb");
b2998049 AV	235
b2998049 AV	236	if (pdata->supplied_to) {
bfde2662 AV	237	pda_psy_ac.supplied_to = pdata->supplied_to;
	238	pda_psy_ac.num_supplicants = pdata->num_supplicants;
	239	pda_psy_usb.supplied_to = pdata->supplied_to;
	240	pda_psy_usb.num_supplicants = pdata->num_supplicants;
b2998049 AV	241	}
b2998049 AV	242
9ef45106	243	if (pdata->is_ac_online) {
bfde2662	244	ret = power_supply_register(&pdev->dev, &pda_psy_ac);
9ef45106 DB	245	if (ret) {
9ef45106 DB	246	dev_err(dev, "failed to register %s power supply\n",
bfde2662	247	pda_psy_ac.name);
9ef45106 DB	248	goto ac_supply_failed;
9ef45106 DB	249	}
b2998049	250
9ef45106 DB	251	if (ac_irq) {
	252	ret = request_irq(ac_irq->start, power_changed_isr,
	253	get_irq_flags(ac_irq), ac_irq->name,
bfde2662	254	&pda_psy_ac);
9ef45106 DB	255	if (ret) {
	256	dev_err(dev, "request ac irq failed\n");
	257	goto ac_irq_failed;
	258	}
c3caebad AV	259	} else {
c3caebad AV	260	polling = 1;
9ef45106	261	}
b2998049 AV	262	}
b2998049 AV	263
9ef45106	264	if (pdata->is_usb_online) {
bfde2662	265	ret = power_supply_register(&pdev->dev, &pda_psy_usb);
b2998049	266	if (ret) {
9ef45106	267	dev_err(dev, "failed to register %s power supply\n",
bfde2662	268	pda_psy_usb.name);
9ef45106	269	goto usb_supply_failed;
b2998049	270	}
b2998049	271
9ef45106 DB	272	if (usb_irq) {
	273	ret = request_irq(usb_irq->start, power_changed_isr,
	274	get_irq_flags(usb_irq),
bfde2662	275	usb_irq->name, &pda_psy_usb);
9ef45106 DB	276	if (ret) {
	277	dev_err(dev, "request usb irq failed\n");
	278	goto usb_irq_failed;
	279	}
c3caebad AV	280	} else {
c3caebad AV	281	polling = 1;
b2998049 AV	282	}
	283	}
	284
c3caebad AV	285	if (polling) {
	286	dev_dbg(dev, "will poll for status\n");
	287	setup_timer(&polling_timer, polling_timer_func, 0);
	288	mod_timer(&polling_timer,
	289	jiffies + msecs_to_jiffies(pdata->polling_interval));
	290	}
	291
	292	if (ac_irq \|\| usb_irq)
	293	device_init_wakeup(&pdev->dev, 1);
8f8e9b38	294
9ef45106	295	return 0;
b2998049 AV	296
b2998049 AV	297	usb_irq_failed:
9ef45106	298	if (pdata->is_usb_online)
bfde2662	299	power_supply_unregister(&pda_psy_usb);
9ef45106 DB	300	usb_supply_failed:
9ef45106 DB	301	if (pdata->is_ac_online && ac_irq)
bfde2662	302	free_irq(ac_irq->start, &pda_psy_ac);
b2998049	303	ac_irq_failed:
9ef45106	304	if (pdata->is_ac_online)
bfde2662	305	power_supply_unregister(&pda_psy_ac);
9ef45106	306	ac_supply_failed:
f6b6b180 PZ	307	if (pdata->exit)
	308	pdata->exit(dev);
	309	init_failed:
b2998049	310	wrongid:
b2998049 AV	311	return ret;
	312	}
	313
	314	static int pda_power_remove(struct platform_device *pdev)
	315	{
9ef45106	316	if (pdata->is_usb_online && usb_irq)
bfde2662	317	free_irq(usb_irq->start, &pda_psy_usb);
9ef45106	318	if (pdata->is_ac_online && ac_irq)
bfde2662 AV	319	free_irq(ac_irq->start, &pda_psy_ac);
bfde2662 AV	320
c3caebad AV	321	if (polling)
c3caebad AV	322	del_timer_sync(&polling_timer);
b2998049 AV	323	del_timer_sync(&charger_timer);
b2998049 AV	324	del_timer_sync(&supply_timer);
bfde2662	325
9ef45106	326	if (pdata->is_usb_online)
bfde2662	327	power_supply_unregister(&pda_psy_usb);
9ef45106	328	if (pdata->is_ac_online)
bfde2662	329	power_supply_unregister(&pda_psy_ac);
f6b6b180 PZ	330	if (pdata->exit)
f6b6b180 PZ	331	pdata->exit(dev);
bfde2662	332
b2998049 AV	333	return 0;
	334	}
	335
8f8e9b38 DB	336	#ifdef CONFIG_PM
	337	static int pda_power_suspend(struct platform_device *pdev, pm_message_t state)
	338	{
	339	if (device_may_wakeup(&pdev->dev)) {
	340	if (ac_irq)
	341	enable_irq_wake(ac_irq->start);
	342	if (usb_irq)
	343	enable_irq_wake(usb_irq->start);
	344	}
	345
	346	return 0;
	347	}
	348
	349	static int pda_power_resume(struct platform_device *pdev)
	350	{
	351	if (device_may_wakeup(&pdev->dev)) {
	352	if (usb_irq)
	353	disable_irq_wake(usb_irq->start);
	354	if (ac_irq)
	355	disable_irq_wake(ac_irq->start);
	356	}
	357
	358	return 0;
	359	}
	360	#else
	361	#define pda_power_suspend NULL
	362	#define pda_power_resume NULL
	363	#endif /* CONFIG_PM */
	364
2f5a5cf9 KS	365	MODULE_ALIAS("platform:pda-power");
2f5a5cf9 KS	366
b2998049 AV	367	static struct platform_driver pda_power_pdrv = {
	368	.driver = {
	369	.name = "pda-power",
	370	},
	371	.probe = pda_power_probe,
	372	.remove = pda_power_remove,
8f8e9b38 DB	373	.suspend = pda_power_suspend,
8f8e9b38 DB	374	.resume = pda_power_resume,
b2998049 AV	375	};
	376
	377	static int __init pda_power_init(void)
	378	{
	379	return platform_driver_register(&pda_power_pdrv);
	380	}
	381
	382	static void __exit pda_power_exit(void)
	383	{
	384	platform_driver_unregister(&pda_power_pdrv);
b2998049 AV	385	}
	386
	387	module_init(pda_power_init);
	388	module_exit(pda_power_exit);
	389	MODULE_LICENSE("GPL");
	390	MODULE_AUTHOR("Anton Vorontsov <cbou@mail.ru>");